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当前学科:诊断学基础
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患者,女,18岁,1天前因在路边摊点进餐后感头昏、疲劳,随后出现米汤样腹泻,间断呕吐,不伴里急后重,大便量多,无黏液脓血。入院查体:体温、血压正常,腹部无压痛,未扪及包块。新鲜大便悬滴检查可见运动活泼呈穿梭状的弧菌。该患者腹泻的发生机制是()。
A . A.分泌性腹泻
B . 渗透性腹泻
C . 渗出性腹泻
D . 动力性腹泻
E . 吸收不良性腹泻
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